18748860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^2$

素因数の和:124

約数の個数: 108

約数和(自身を含む): 58198392

約数和(自身を除く): 39449532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 43, 52, 60, 65, 78, 86, 129, 130, 156, 169, 172, 195, 215, 258, 260, 338, 390, 430, 507, 516, 559, 645, 676, 780, 845, 860, 1014, 1118, 1290, 1677, 1690, 1849, 2028, 2236, 2535, 2580, 2795, 3354, 3380, 3698, 5070, 5547, 5590, 6708, 7267, 7396, 8385, 9245, 10140, 11094, 11180, 14534, 16770, 18490, 21801, 22188, 24037, 27735, 29068, 33540, 36335, 36980, 43602, 48074, 55470, 72111, 72670, 87204, 96148, 109005, 110940, 120185, 144222, 145340, 218010, 240370, 288444, 312481, 360555, 436020, 480740, 624962, 721110, 937443, 1249924, 1442220, 1562405, 1874886, 3124810, 3749772, 4687215, 6249620, 9374430, 18748860]

約数ペア:

[(1, 18748860), (2, 9374430), (3, 6249620), (4, 4687215), (5, 3749772), (6, 3124810), (10, 1874886), (12, 1562405), (13, 1442220), (15, 1249924), (20, 937443), (26, 721110), (30, 624962), (39, 480740), (43, 436020), (52, 360555), (60, 312481), (65, 288444), (78, 240370), (86, 218010), (129, 145340), (130, 144222), (156, 120185), (169, 110940), (172, 109005), (195, 96148), (215, 87204), (258, 72670), (260, 72111), (338, 55470), (390, 48074), (430, 43602), (507, 36980), (516, 36335), (559, 33540), (645, 29068), (676, 27735), (780, 24037), (845, 22188), (860, 21801), (1014, 18490), (1118, 16770), (1290, 14534), (1677, 11180), (1690, 11094), (1849, 10140), (2028, 9245), (2236, 8385), (2535, 7396), (2580, 7267), (2795, 6708), (3354, 5590), (3380, 5547), (3698, 5070)]